Sharps .50-90 or .50-110 would put some higher end kick back in your collection. Someone mentioned a Remington 600 in 6mm---.244, I like mine and it will outperform the .243 by a margin. Your 25-06 is one of my favorite calibers. Ever think about going with a .220 Swift? Where's the venerable
.22LR? When the EWOS go out---you'll be in better position than most.